Valve-grinder



; H M. RAND.

VALVE GRINDER. APP LICAT|0N FILED JUNE-3, 1919.

1,328,197 Patented Jan. 13, 1920.

WI TNESS: I N VEN TOR.

M TTORNEY.

UNKT sans retina? mare.

HARRY'M. RAND, 0F WESTVILLE, NEW JERSEY.

VALVE-GRINDER.

Application filed June 3, 1919.

To all whom it may concern:

Be it known. that I, HARRY M. RAND, a citizen} of the United States ofAmerica, residing at Westville, in the county of Gloucester and StateoiNew Jersey, have invented new and-useful Improvements inValve-Grinders, of which the following is a specification.

This invention relates to valve grinding tools, particularly to a tooldesigned for use in grinding the valves of an extremely popular make ofmotor vehicle engine, and has for its object the provision of a valvegrinding tool engageablel upon a valve stem whereby the same may berotated back and forth, instead of engaging the head of the valve, as isthe ordinary practice, the advantage being that working from below thehead the operator may lift the valve from its seat partially from timeto timeto permit fresh valve grinding compound to flow onto the surfacebeing ground. I

An important and more specific object is the provision of a tool of thischaracter comprising a handle from which extends a clamping memberengageable about the valve stem and from which also extendsa memberadapted to be passed through the hole in the valve stem from which thevalve spring retaining pin has previously been removed.

An additional-object is the provision of a device of this characterwhich will be ex: tremely simple and inexpensive in manufacture, whichis easy to operate, which will be efficient and durable in use, and ageneral improvement in the art.

With the above and other objects and advantages in view, the inventionconsists in the details of construction to be hereinafter more fullydescribed and claimed, and illustrated in the accompanying drawing, inwhich- Figure 1 is a side elevation of m device showing it in engagementwith a va ve stem, and 1 Fig. 2 is a plan view, the valve stem beingshown in section.

Referring more particularly to the drawing, the letter A designatesavalve of the type used in the Ford automobile engine, this valveincluding a stem B through which is formed a hole C within which isengaged the valve spring retaining pin, not shown. The valve isillustrated for the sake of clear- Spe'cification of Letters Eatent.

Patented Jan. 13, 1920.

Serial No. 301,400.

are formed from spring material which may conveniently be piano wire andthe wires are twisted together, as shown at 13, and insert ed within thehandle 10. Also twisted with the wires forming the clamping members 11is a similar wire 14 which extends in spaced parallel relation to the:clamping members 11 and which is adapted for insertion through th hole Cin the "alve stem. An enlargement or stop collar 15 is provided on thewire M for limiting its passage through the hole C. f

In the use of the device, the valve spring and its retaining pin, notshown, having been first removed from the valve, the operator grasps thehandle 10 and inserts the end of the wire 14 through the hole C in thevalve stem and engages the clamping members 11 upon the valve stem. Itwill be observed that'the wire 14: is of greater length than theclamping members 11 so as to facilitate its insertion within the holeC-before the clamping members 11 engage the stem. The tool being thuspositioned, the operator pulls upwardly upon the handle 10' andconsequently elevates the .valve A from its seat so that the propervalve grinding compound or the like may be placed upon the seat or uponthe edge of the valve. The operator then presses downwardly upon thetool to reseat the valve and then he rocks the valve back and forth byswing- Cir jFrom the foregoing description and a study of the drawing,it will be apparent that I have thus provided an extremely simple andinexpensive tool whereby valves may be ground easily and expeditiouslyand in a highly etiicient manner.

While I have shown and described the preferred embodiment of myinvention, it is of course to be understood that I reserve the right tomake such changes in-the form, construction, and arrangement of parts aswill not depart from the spirit of the invention or the scope of thesubjoined claims.

Havingthus described my. invention, 1 claim 2- 1. A valve grinding toolcomprising a handle, a pair of spring arms extending from one end ofsaid handle and adapted for resilient gripping engagement upon the. stemof a valve, and a member extending from the same end of the handle inspaced relation to said clamping arms and adapted for insertion ithinthe valve spring pinhole in the stem. A

2. A valve grinding tool comprising a handle, a clamping memberextending from one end of said handle and including spring armsengageable upon a valve stem, and a member extending from the same endof said handle in spaced parallel relation to master said clampingmember and engageable with y in the valve spring pinhole in the stem.

3. A valve grinding tool comprising a handle, a pair of spring armstwisted t0- gether and extending from one end of said handle and adaptedfor partial embracing engagement with a valve stem, and a mem bertwisted about said spring arms adjacent their juncture with the handleand extending in spaced parallel relation to said spring arms andengageable through the valve spring pin hole in the stem, said memherbeing of greater length than said spring arms and being provided vvithan enlarged portion serving as a stop for limiting the, passage of saidmember through said hole.

-l. A valve grinding tool comprising a handle, a resilient clampingmember extending from one end of said handle and engageable about avalve stem, and a member extending from the same end otsaid handle inspaced relation to said clamping member and extending beyond theclamping member and adapted for engagement within the valve springpin-hole of a. valve stem.

said member having a projection thereon limiting its degree of insertionWithin the pinhole. r

In testimony whereof ll athx my signature.

HARRY M. RAND.

